/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.ambari.infra.model;

import java.text.DateFormat;
import java.text.FieldPosition;
import java.text.ParsePosition;
import java.time.OffsetDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Date;

public class ISO8601DateFormatter extends DateFormat {
  @Override
  public StringBuffer format(Date date, StringBuffer toAppendTo, FieldPosition fieldPosition) {
    toAppendTo.append(DateTimeFormatter.ISO_OFFSET_DATE_TIME.format(DateUtil.toOffsetDateTime(date)));
    return toAppendTo;
  }

  @Override
  public Date parse(String source, ParsePosition pos) {
    OffsetDateTime offsetDateTime = OffsetDateTime.parse(source, DateTimeFormatter.ISO_OFFSET_DATE_TIME);
    pos.setIndex(pos.getIndex() + source.length());
    return Date.from(offsetDateTime.toInstant());
  }
}
